These HNBR O-rings 90A are AED-resistant (Anti-Explosive Decompression) and suitable for applications exposed to rapid pressure changes, gas permeation, and high-pressure environments. The material effectively reduces internal gas blistering and cracking, making it a reliable sealing solution for oil & gas, energy, and demanding industrial systems.
Positioned between NBR, EPDM, and FKM in overall performance, HNBR fills the gap where higher temperature capability, improved tensile strength, and explosive decompression resistance are required, without the higher cost of fluoroelastomers.
Technical Data
Material: Hydrogenated Nitrile Rubber (HNBR / HSN)
Hardness: 90 Shore A
AED Performance: Anti-Explosive Decompression resistant
Color: Black, Green (other colors available upon request)
Operating Temperature Range: -30°C to +150°C
O-Ring Size & Cross-Section Diagram
ID: inner diameter
OD: outer dimeter
CS: cross section
Applications
Oil & gas equipment with rapid pressure release
High-pressure sealing systems requiring AED resistance
Automotive and powertrain applications
Refrigeration systems and compressors
Heavy-duty industrial machinery
HNBR Material Limitations
HNBR material is not recommended for use with:
Alcohols
Fuels containing aggressive additives
Media requiring full FKM (fluoro-rubber) chemical resistance
QZSEALS is a professional O-ring manufacturer and source supplier. We stock a full range of HNBR O-rings 90A, including AS568 standard sizes, to ensure fast delivery. Custom non-standard dimensions and AED-specific compounds can also be produced based on drawings or application requirements.
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